6.05. The First Wave

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Synopsis

Caught in the inevitable path of its own history, the TARDIS arrives on the planetoid Grace Alone, where the Doctor, Steven and Oliver expect to face their fate. What they don’t expect to find is a massacred crew – and a race of alien invaders known as the Vardans.

When the Doctor is apparently killed, his companions attempt to survive against the odds. But those odds are narrowing. Their borrowed time has expired.